Method for manufacturing separator web, method for manufacturing separator, separator web, and apparatus for manufacturing separator web

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United States of America Patent

PATENT NO 10665838
APP PUB NO 20170307542A1
SERIAL NO

15517249

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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To easily specify the position of a defect in a separator, a method for producing a separator original sheet (12b) includes the steps of: forming a separator original sheet (12b) including a separator original sheet (12c) and a heat-resistant layer coated on the separator original sheet (12c); detecting a defect (D) in the separator original sheet (12b); and recording information including information on a position of the defect (D) which position is a position in the width direction of the separator original sheet (12b).

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Patent Owner(s)

  • SUMITOMO CHEMICAL COMPANY, LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kashu, Koji Niihama, JP 20 23
Kataoka, Tatsuya Niihama, JP 61 895
Watanabe, Koichiro Niihama, JP 84 1071

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